CD Pens

I have too much stuff. The drives on my desktop and home server are bursting with stuff. Since getting a DSLR my disk usage has gone through the roof. Yesterday and today I have been backing up non-essential stuff to DVD.

I use to think that a 700 MiB CD was a lot of space to fill, then more recently I use to think that a 4.37 GiB DVD was a a lot of space to fill. Now I think both CD and DVD hold practically nothing and I need TiB of storage....

Anyhow the blip is a close up of some humble TDK CD-pens, or should that be DVD-pens? They are quite colourful and fun and have a passing resemblance to a British Rail Intercity 125 train I think?